<template>
	<el-form size="small">
		<el-form-item>
			<el-radio :label="1" v-model="radioValue">不填，允许的通配符[, - * /]</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio :label="2" v-model="radioValue">每年</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio :label="3" v-model="radioValue">
				周期从
				<el-input-number v-model="cycle01" :min="fullYear" :max="maxFullYear - 1" />
				-
				<el-input-number v-model="cycle02" :min="cycle01 + 1" :max="maxFullYear" />
			</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio :label="4" v-model="radioValue">
				从
				<el-input-number v-model="average01" :min="fullYear" :max="maxFullYear - 1" />
				年开始，每
				<el-input-number v-model="average02" :min="1" :max="10" />
				年执行一次
			</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio :label="5" v-model="radioValue">
				指定
				<el-select clearable v-model="checkboxList" placeholder="可多选" multiple :multiple-limit="8">
					<el-option v-for="item in 9" :key="item" :value="item - 1 + fullYear" :label="item - 1 + fullYear" />
				</el-select>
			</el-radio>
		</el-form-item>
	</el-form>
</template>

<script setup>
const emit = defineEmits(['update'])
const props = defineProps({
	cron: {
		type: Object,
		default: {
			second: '*',
			min: '*',
			hour: '*',
			day: '*',
			month: '*',
			week: '?',
			year: ''
		}
	},
	check: {
		type: Function,
		default: () => {}
	}
})
const fullYear = ref(0)
const maxFullYear = ref(0)
const radioValue = ref(1)
const cycle01 = ref(0)
const cycle02 = ref(0)
const average01 = ref(0)
const average02 = ref(1)
const checkboxList = ref([])
const checkCopy = ref([])
const cycleTotal = computed(() => {
	cycle01.value = props.check(cycle01.value, fullYear.value, maxFullYear.value - 1)
	cycle02.value = props.check(cycle02.value, cycle01.value + 1, maxFullYear.value)
	return cycle01.value + '-' + cycle02.value
})
const averageTotal = computed(() => {
	average01.value = props.check(average01.value, fullYear.value, maxFullYear.value - 1)
	average02.value = props.check(average02.value, 1, 10)
	return average01.value + '/' + average02.value
})
const checkboxString = computed(() => {
	return checkboxList.value.join(',')
})
watch(
	() => props.cron.year,
	value => changeRadioValue(value)
)
watch([radioValue, cycleTotal, averageTotal, checkboxString], () => onRadioChange())
function changeRadioValue(value) {
	if (value === '') {
		radioValue.value = 1
	} else if (value === '*') {
		radioValue.value = 2
	} else if (value.indexOf('-') > -1) {
		const indexArr = value.split('-')
		cycle01.value = Number(indexArr[0])
		cycle02.value = Number(indexArr[1])
		radioValue.value = 3
	} else if (value.indexOf('/') > -1) {
		const indexArr = value.split('#')
		average01.value = Number(indexArr[1])
		average02.value = Number(indexArr[0])
		radioValue.value = 4
	} else {
		checkboxList.value = [...new Set(value.split(',').map(item => Number(item)))]
		radioValue.value = 5
	}
}
function onRadioChange() {
	switch (radioValue.value) {
		case 1:
			emit('update', 'year', '', 'year')
			break
		case 2:
			emit('update', 'year', '*', 'year')
			break
		case 3:
			emit('update', 'year', cycleTotal.value, 'year')
			break
		case 4:
			emit('update', 'year', averageTotal.value, 'year')
			break
		case 5:
			if (checkboxList.value.length === 0) {
				checkboxList.value.push(checkCopy.value[0])
			} else {
				checkCopy.value = checkboxList.value
			}
			emit('update', 'year', checkboxString.value, 'year')
			break
	}
}
onMounted(() => {
	fullYear.value = Number(new Date().getFullYear())
	maxFullYear.value = fullYear.value + 10
	cycle01.value = fullYear.value
	cycle02.value = cycle01.value + 1
	average01.value = fullYear.value
	checkCopy.value = [fullYear.value]
})
</script>

<style lang="scss" scoped>
.el-input-number--small,
.el-select,
.el-select--small {
	margin: 0 0.2rem;
}
.el-select,
.el-select--small {
	width: 18.8rem;
}
</style>
